Bernardo de Araujo

Application Security Engineer @Shopify.

  1. November 19, 2021

    Let's investigate MACs built using block ciphers by learning about the ECBC algorithm.

  2. September 05, 2021

    In this post we will investigate how multiple ciphertexts encrypted with a fixed nonce in CTR mode can be attacked.

  3. August 25, 2021

    In this post we will investigate how encrypting and decrypting in CTR mode works.

  4. July 31, 2021

    Let's explore this modern static analysis tool and how it allows us to identify patterns in our code for linting or security purposes.

  5. June 20, 2021

    Given that we are using repeating-key XOR, how do we figure out the length of an unknown key?

  6. June 12, 2021

    Implementing and breaking the repeating-key XOR algorithm

  7. March 16, 2021

    Thoughts on content curation as a way to mitigate content overload.

  8. February 18, 2021

    A take on different leadership styles and what I consider a healthy balance.

  9. February 15, 2021

    Learning and mentoring through our new digital context.

© Bernardo de Araujo 2021